<style>
  html,
  body {
    height: 100%;
  }

  #webviewDiv {
    height: 100vh;
  }

  #webview {
    display: flex;
    height: 100%;
  }
</style>
</div>
<div id="webviewDiv" role="dialog"
    aria-label="$i18n{pageTitle}">
  <webview id="webview"></webview>
</div>
